[ci] Fix notodiff call
[ci] Fix notodiff call

Previous syntax was left over from when this was in a loop. Now it
should match all output TTFs with a single call.

googlei18n/noto-source,googlefonts/noto-source,googlei18n/noto-source,googlei18n/noto-source,googlefonts/noto-source,googlefonts/noto-source